/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 01:40:06,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 01:40:06,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 01:40:06,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 01:40:06,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 01:40:06,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 01:40:06,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 01:40:06,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 01:40:06,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 01:40:06,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 01:40:06,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 01:40:06,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 01:40:06,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 01:40:06,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 01:40:06,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 01:40:06,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 01:40:06,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 01:40:06,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 01:40:06,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 01:40:06,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 01:40:06,465 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-04 01:40:06,489 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 01:40:06,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 01:40:06,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 01:40:06,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 01:40:06,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 01:40:06,491 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 01:40:06,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 01:40:06,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 01:40:06,491 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 01:40:06,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 01:40:06,491 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 01:40:06,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 01:40:06,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 01:40:06,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 01:40:06,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 01:40:06,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 01:40:06,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 01:40:06,492 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 01:40:06,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 01:40:06,492 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 01:40:06,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 01:40:06,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 01:40:06,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 01:40:06,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 01:40:06,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 01:40:06,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:40:06,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 01:40:06,493 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 01:40:06,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 01:40:06,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 01:40:06,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 01:40:06,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 01:40:06,493 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 01:40:06,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 01:40:06,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 01:40:06,494 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 01:40:06,494 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 01:40:06,494 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 01:40:06,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 01:40:06,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 01:40:06,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 01:40:06,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 01:40:06,685 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 01:40:06,699 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 01:40:06,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-fun.wvr.bpl [2022-03-04 01:40:06,701 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-fun.wvr.bpl' [2022-03-04 01:40:06,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 01:40:06,722 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 01:40:06,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 01:40:06,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 01:40:06,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 01:40:06,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:40:06" (1/1) ... [2022-03-04 01:40:06,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:40:06" (1/1) ... [2022-03-04 01:40:06,758 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 01:40:06,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 01:40:06,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 01:40:06,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 01:40:06,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 01:40:06,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:40:06" (1/1) ... [2022-03-04 01:40:06,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:40:06" (1/1) ... [2022-03-04 01:40:06,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:40:06" (1/1) ... [2022-03-04 01:40:06,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:40:06" (1/1) ... [2022-03-04 01:40:06,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:40:06" (1/1) ... [2022-03-04 01:40:06,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:40:06" (1/1) ... [2022-03-04 01:40:06,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:40:06" (1/1) ... [2022-03-04 01:40:06,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 01:40:06,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 01:40:06,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 01:40:06,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 01:40:06,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:40:06" (1/1) ... [2022-03-04 01:40:06,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:40:06,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:40:06,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 01:40:06,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 01:40:06,845 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 01:40:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 01:40:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 01:40:06,845 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 01:40:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 01:40:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 01:40:06,846 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 01:40:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 01:40:06,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 01:40:06,847 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 01:40:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 01:40:06,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 01:40:06,848 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 01:40:06,887 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 01:40:06,888 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 01:40:07,000 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 01:40:07,012 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 01:40:07,013 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 01:40:07,014 INFO L202 PluginConnector]: Adding new model min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:40:07 BoogieIcfgContainer [2022-03-04 01:40:07,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 01:40:07,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 01:40:07,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 01:40:07,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 01:40:07,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:40:06" (1/2) ... [2022-03-04 01:40:07,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@760a788a and model type min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 01:40:07, skipping insertion in model container [2022-03-04 01:40:07,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:40:07" (2/2) ... [2022-03-04 01:40:07,020 INFO L111 eAbstractionObserver]: Analyzing ICFG min-fun.wvr.bpl [2022-03-04 01:40:07,024 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 01:40:07,024 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 01:40:07,025 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 01:40:07,025 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 01:40:07,048 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 01:40:07,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 01:40:07,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:40:07,094 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 01:40:07,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 01:40:07,132 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 01:40:07,137 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-04 01:40:07,137 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 01:40:07,317 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-03-04 01:40:07,319 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:40:07,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:40:07,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-03-04 01:40:07,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:40:07,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898237733] [2022-03-04 01:40:07,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:40:07,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:40:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:40:07,574 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-04 01:40:07,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:40:07,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898237733] [2022-03-04 01:40:07,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898237733] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:40:07,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915876951] [2022-03-04 01:40:07,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:40:07,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:40:07,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:40:07,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:40:07,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 01:40:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:40:07,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-04 01:40:07,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:40:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 01:40:07,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:40:08,131 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 01:40:08,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915876951] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:40:08,132 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:40:08,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-03-04 01:40:08,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803783640] [2022-03-04 01:40:08,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:40:08,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-04 01:40:08,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:40:08,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-04 01:40:08,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-03-04 01:40:08,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:40:08,164 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:40:08,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:40:08,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:40:08,646 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-03-04 01:40:08,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:40:08,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 01:40:08,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 01:40:08,864 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:40:08,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:40:08,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-03-04 01:40:08,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:40:08,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98804004] [2022-03-04 01:40:08,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:40:08,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:40:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:40:08,989 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:40:08,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:40:08,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98804004] [2022-03-04 01:40:08,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98804004] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:40:08,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342498771] [2022-03-04 01:40:08,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 01:40:08,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:40:08,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:40:09,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:40:09,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 01:40:09,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 01:40:09,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:40:09,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-04 01:40:09,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:40:09,218 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:40:09,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:40:09,389 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:40:09,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342498771] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:40:09,389 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:40:09,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-04 01:40:09,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787335894] [2022-03-04 01:40:09,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:40:09,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-04 01:40:09,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:40:09,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-04 01:40:09,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-04 01:40:09,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:40:09,392 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:40:09,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:40:09,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:40:09,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:40:09,735 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-03-04 01:40:09,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:40:09,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:40:09,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 01:40:09,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:40:09,937 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:40:09,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:40:09,938 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-03-04 01:40:09,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:40:09,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049377344] [2022-03-04 01:40:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:40:09,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:40:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:40:12,857 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:40:12,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:40:12,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049377344] [2022-03-04 01:40:12,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049377344] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:40:12,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141963927] [2022-03-04 01:40:12,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 01:40:12,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:40:12,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:40:12,859 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:40:12,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 01:40:12,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-03-04 01:40:12,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:40:12,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 43 conjunts are in the unsatisfiable core [2022-03-04 01:40:12,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:40:21,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:40:21,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:40:21,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:40:22,009 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 01:40:22,010 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 487 treesize of output 375 [2022-03-04 01:41:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:41:21,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:41:37,916 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:41:37,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:41:37,918 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:41:37,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:41:38,035 INFO L353 Elim1Store]: treesize reduction 32, result has 77.3 percent of original size [2022-03-04 01:41:38,036 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 22 case distinctions, treesize of input 1917 treesize of output 1067 [2022-03-04 01:46:26,419 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:46:26,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141963927] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:46:26,420 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:46:26,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 37 [2022-03-04 01:46:26,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664057438] [2022-03-04 01:46:26,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:46:26,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-03-04 01:46:26,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:46:26,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-03-04 01:46:26,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1214, Unknown=0, NotChecked=0, Total=1332 [2022-03-04 01:46:26,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:46:26,424 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:46:26,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.3783783783783785) internal successors, (88), 37 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:46:26,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:46:26,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:46:26,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:46:44,187 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 157 transitions and produced 141 states. [2022-03-04 01:46:44,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 01:46:44,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:46:44,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 01:46:44,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 01:46:44,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:46:44,403 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:46:44,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:46:44,404 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-03-04 01:46:44,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:46:44,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053191945] [2022-03-04 01:46:44,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:46:44,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:46:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:48:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:48:32,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:48:32,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053191945] [2022-03-04 01:48:32,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053191945] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:48:32,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111515066] [2022-03-04 01:48:32,684 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 01:48:32,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:48:32,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:48:32,686 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:48:32,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 01:48:32,728 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 01:48:32,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:48:32,729 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-04 01:48:32,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:48:40,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:48:40,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:48:40,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:48:40,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:48:40,406 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:48:40,409 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 533 [2022-03-04 01:48:42,965 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:48:42,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:52:33,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:52:33,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:52:33,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:52:33,810 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-03-04 01:52:33,811 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 31007 treesize of output 14129 Received shutdown request... [2022-03-04 01:54:32,206 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 01:54:32,206 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 01:54:32,206 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 01:54:32,229 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-04 01:54:32,231 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-04 01:54:32,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 01:54:32,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:54:32,447 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 39 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 42ms.. [2022-03-04 01:54:32,449 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-04 01:54:32,449 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-04 01:54:32,449 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-04 01:54:32,453 INFO L732 BasicCegarLoop]: Path program histogram: [4] [2022-03-04 01:54:32,455 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 01:54:32,455 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 01:54:32,456 INFO L202 PluginConnector]: Adding new model min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 01:54:32 BasicIcfg [2022-03-04 01:54:32,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 01:54:32,457 INFO L158 Benchmark]: Toolchain (without parser) took 865734.89ms. Allocated memory was 181.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 143.0MB in the beginning and 488.8MB in the end (delta: -345.7MB). Peak memory consumption was 828.6MB. Max. memory is 8.0GB. [2022-03-04 01:54:32,457 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 181.4MB. Free memory is still 144.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 01:54:32,457 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.19ms. Allocated memory is still 181.4MB. Free memory was 142.9MB in the beginning and 141.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 01:54:32,458 INFO L158 Benchmark]: Boogie Preprocessor took 16.75ms. Allocated memory is still 181.4MB. Free memory was 141.4MB in the beginning and 140.4MB in the end (delta: 982.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 01:54:32,458 INFO L158 Benchmark]: RCFGBuilder took 236.35ms. Allocated memory is still 181.4MB. Free memory was 140.4MB in the beginning and 131.1MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 01:54:32,458 INFO L158 Benchmark]: TraceAbstraction took 865440.67ms. Allocated memory was 181.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 130.5MB in the beginning and 488.8MB in the end (delta: -358.2MB). Peak memory consumption was 816.0MB. Max. memory is 8.0GB. [2022-03-04 01:54:32,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 181.4MB. Free memory is still 144.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.19ms. Allocated memory is still 181.4MB. Free memory was 142.9MB in the beginning and 141.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.75ms. Allocated memory is still 181.4MB. Free memory was 141.4MB in the beginning and 140.4MB in the end (delta: 982.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 236.35ms. Allocated memory is still 181.4MB. Free memory was 140.4MB in the beginning and 131.1MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 865440.67ms. Allocated memory was 181.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 130.5MB in the beginning and 488.8MB in the end (delta: -358.2MB). Peak memory consumption was 816.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 39 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 42ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 39 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 42ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 39 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 42ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 39 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 42ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 865.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 18.7s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 377.4s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 279 ConstructedInterpolants, 16 QuantifiedInterpolants, 24482 SizeOfPredicates, 30 NumberOfNonLiveVariables, 249 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 9 InterpolantComputations, 0 PerfectInterpolantSequences, 40/159 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown